Ludwig Hirschfeld Mack (11 July 1893, in Frankfurt-am-Main – 7 January 1965, in Allambie Heights, in Sydney) was a German/Australian artist.
His formative education was 1912–1914 at Debschitz art school in Munich.
He studied at the Bauhaus from 1919 - 1924 and remained working there until 1926 where, along with Kurt Schwerdtfeger, he further developed the Farblichtspiele ('coloured-light-plays'), which used a projection device to produced moving colours on a transparent screen accompanied by music composed by Hirschfeld Mack.
It is now regarded as an early form of multimedia.
He was a participant, along with the former Bauhaus master Gertrud Grunow, in den II.
Kongreß für Farbe-Ton-Forschung (Hamburg 1.
- 5.
Oktober 1930) (English: Second Congress for Colour-Sound Research, Hamburg).
Music and colour theory remained lifelong interests, informing his art work in a number of media, and it was the inspiration for his well-respected and influential teaching.